Warm blooded fish

First warm-blooded fish found

The car-tire-size opah is striking enough thanks to its rotund,silver body. But now, researchers have discovered something surprising about this deep-sea dweller:It's got warm blood.

May 15, 2015
May 15, 2015

First warm-blooded fish found

The car-tire-size opah is striking enough thanks to its rotund,silver body. But now, researchers have discovered something surprising about this deep-sea dweller:It's got warm blood.